Is tulips a proper noun?
No, the noun 'tulips' is a common noun (the plural form for the noun tulip) a word for any tulips of any kind, anywhere.A proper noun is the name of a specific person, place, thing, or a title; for example:Emily Finnegan, Albany Tulip Queen 2012Tulips Resort and Amusement Park, Bangalore, IndiaBread & Tulips (restaurant), New York, NYRedwood Grove French Tulips, product of The Sun Valley Group, Arcata, CA"Alice's Tulips", a novel by Sandra Dallas